﻿<blockquote class="extDef">NOTE&nbsp; Definition according to ISO/CD 10303-41:1992<br>
An SI prefix is the name of a prefix that may be associated 
with an SI unit. The definitions of SI prefixes are specified in ISO 1000 (clause 3).</blockquote>

<blockquote class="note">
NOTE&nbsp; The prefix defines multiples and submultiples of the SI units.
</blockquote>

<blockquote class="note">NOTE&nbsp; Type adapted from <strong>si_prefix</strong> defined in ISO
10303-41.</blockquote>

<blockquote class="history">
  HISTORY&nbsp; New entity in IFC1.5.1.
</blockquote>